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Q. What is compound?
A compound is a substance which consists of two or more elements chemically combined. The elements in a compound aren't simply mingled together as they are in a mixture. In its place they are combined in a way such that the compound has properties that are different from those of the elements of which it is composed. Every compound is represented by a formula a combination of the symbols of the elements that make up the compounds. You may already recognize some chemical formulas such as H2O for water, NaCl for table salt and NH3 for ammonia.
An electronic transition from 1s orbital of an atom causes: (1) Absorption of energy (2) Release of energy (3) Both release or absorption of energy (4) Unpredictable
What are Acceptance Tests? Acceptance tests are used to evaluate product acceptability or liking or to determine which of a series of products is the most acceptable or the mo
Till 20elememts write the no of electrons in outermost shell.if less than 4 then this is the valency otherwise subtract from 8
why is ethanol used as an solvent in substitution reactions? ethanol is used as an solvent because it is soluble in water and also it is more reacive.... Ethanol is used u
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o.5oog of a sample which contains copper is analyzed iodometrically. Copper(II) is reduced to copper(I) by the iodide. What is the percent copper in the sample if 20.00cm3 of 0.1 m
Empirical formula Empirical formula of a substance provides the simplest whole number ratio among the atoms of the various elements exist in one molecule of the elements. For i
Q. Explain the Purity Tests of sesame oil? Purity tests for oils/fats would include analyzing the samples for the presence of sesame oil, cottonseed oil, linseed oil, argemone
assigment work of crossion
please provide tests in a tabular form
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